衰减

A rain attenuation model based on artificial neural network is proposed to deal with the problem in this paper.

本文针对现有预测模型存在原理上的误差这一问题，将人工神经网络应用于雨衰减的预测中，建立了基于人工神经网络的雨衰减模型。

Based on fluid network theory ,the mathematical model of fluid pulsation attenuator was established.

采用流体网络理论方法对流体网络的特点和基本参数法进行分析，研究并建立一种流体脉动衰减器的数学模型，并通过脉动衰减器的阻抗及系统插入损失，对其性能进行研究。

This is not an HiFi attenuator but might come useful as a general purpose audio attenuator.

Thi 这不是一个音响，但可能出现衰减器作为一个通用的有用的音频衰减。

This pulse was sent to an attenuator in order to get appropriate amplitude.

该脉冲经过衰减器衰减得到合时的脉冲幅度。

The analysis of the continuous property of raw silk size Setting the decaying rateλand the quasi-cycle value T in the model of the silk size autocorrelation coefficient, building the time series of a single cocoon reeling silk size with autoregressive model, then by combining k such time series according to different phrase, obtained time series of the raw silk size, and finally count up the silk size deviation of the time series.

利用一理想化的正弦波模型生成一粒缫生丝纤度时间序列，通过调查该模型中波动幅度及波动周期的变化对自相关系数序列衰减率的影响，初步建立起一粒缫生丝纤度自相关系数列衰减率λ与纤度时间序列特征数之间的关系式。从而使我们可以生成具有要求连续性特征的生丝纤度时间序列，为进一步研究生丝纤度连续性特征提供了新的途径。

With the solutions of the biharmonic equation at boundary value in a semi-infinite stripe,a weighted energy function is established.

对半无限带状区域上双调和方程边值问题建立了能量衰减估计，证明了以方程的解建立的加权能量随着与区域有限端距离的增长，该能量呈指数式衰减。

It is also shown that the biquadratic coupling falls off much more rapidly withincreasing temperature than the bilinear one.

此外，我们的结果显示双二次耦合强度随温度升高的衰减强于双线性耦合强度随温度升高的衰减。

The rate of fall is dependent on the continuity of the scale function in time domain. Furthermore, it relates with the multiplicity of zero point at ω=π of the amplitude spectrum of the low pass filter. The distribution of zero points was investigated thoroughly. From the above statement, the dominant interval is deduced to be [0, 2π].

衰减性取决于尺度函数的连续性，进一步它与低通滤波器在ω＝π处零点重数有关；详细讨论了零点的分布及其重数；由零点的分布和衰减性推出尺度函数的幅值谱主导区间为[0，2π]；ω＝0处极大值性态与低通滤波器在该处性态相同。

For linear time-delay systems with norm-bounded uncertainties or convex polyhedron uncertainties, a sufficient and necessary delay independent condition of quadratic stabilizability under certain robust H~?

讨论了具有范数有界不确定参数线性不确定时滞系统的指定衰减度鲁棒稳定的一个充分性判据以及设计状态反馈控制器使得闭环系统具有指定鲁棒衰减度的方法。

Test results showed that the decayof X2ray in some kind of explosive was obvious and its law conformed with cubic equation.

研究结果表明，X 射线在某炸药中的衰减是比较明显的，其衰减规律符合三次方程形式。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。